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Finding the Fourth Proportional to 60,535.68, 90,702.72 and 21,071.04

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Solution

The fourth proportional to 60,535.68, 90,702.72 and 21,071.04 is: 31,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,535.68 : 90,702.72 = 21,071.04 : x
  2. Step 2: Convert to fraction form
    60,535.68/90,702.72 = 21,071.04/x
  3. Step 3: Cross multiply
    60,535.68x = 90,702.72 × 21,071.04
  4. Step 4: Simplify right side
    60,535.68x = 1,911,200,641.23
  5. Step 5: Solve for x
    x = 1,911,200,641.23/60,535.68
  6. Step 6: Final answer
    x = 31,571.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.